18594020036 has 6 divisors (see below), whose sum is σ = 32539535070. Its totient is φ = 9297010016.

The previous prime is 18594020023. The next prime is 18594020059. The reversal of 18594020036 is 63002049581.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12142717636 + 6451302400 = 110194^2 + 80320^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2324252501 + ... + 2324252508.

It is an arithmetic number, because the mean of its divisors is an integer number (5423255845).

Almost surely, 2^18594020036 is an apocalyptic number.

It is an amenable number.

18594020036 is a deficient number, since it is larger than the sum of its proper divisors (13945515034).

18594020036 is a wasteful number, since it uses less digits than its factorization.

18594020036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4648505013 (or 4648505011 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 18594020036 in words is "eighteen billion, five hundred ninety-four million, twenty thousand, thirty-six".